We use Skype for Business extensively and need two switch between Phone and Laptop. Please, please, please have this feature enabled. If Microsoft recommends alternatives to Skype for Business which is the future of Instant chat, please do let me know.

Trying to use two devices with SFB is utterly painful. Combine on this uservoice there's about 4/5 of the top upvoted SFB features are essentially to have conversation history in chat which would fix this. They need to be combined since collectively they have about 60000+ votes.